644 rwhp on 7 psi? YEP!
04-15-2006, 06:56 AM
#21
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Originally Posted by Nickn20
How about the lack of boost? could you imagine what this car would put down if you could pulley the blower to generate 13 psi like your 630 rwhp setup? This car barely makes 7 psi peak, and at 3500 it doesnt even registering 1 full psi? Just some food for thought, boost doesnt mean power. I also predicted this car would make about 650 rwhp on 7 psi based on the NA numbers it produced before the blower went on. I think it could make 750-800 rwhp at 13 psi, but we all know the bottom end wont hold that for very long, if at all, it would be fun trying, haha.
Its better to know your impeller speed on the SC than a boost reading when you want to predict how much more power can he had. Thats why i listed the impeller speed of the SC because every setup will flow differently. Boost readings doesn't mean power as you said.
The way to predict how much more power you have left on the table is to calculate how much you have used your blower to get to 7psi. So whats the SC and crank pulley size you are running? Whats the step up ratio (I think Vortech is running 3.45 or so). Whats the max impeller speed allowed on the blower (I think its 52000 RPM)? I know T Trims flow 1200 CFM (Same as a P-1SC flow) and are rated around 825HP (Absolute Engine HP) which is around 750 Crank HP.
So if you are running lets say 3.20 SC pulley and 8.0 Crank pulley(I think Vortech uses 8" crank pulley, but im not sure) you would have ran the SC at 59500 RPM which is over 5000-7000 RPM over the limit of the blower. If you have a 3.6 pulley there you would be maxing out the blower around 52900 RPM.
So i would think that the blower won't be able to see 750-800rwhp at 13psi because with how your setup is flowing now i think you won't even see that much boost even if you ran the smallest pulley on the blower.
So my question would be whats the SC pulley and crank pulley size on your setup now?
04-15-2006, 12:55 PM
#22
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Wrong T-trim my friend, this is as JT-trim actually. you are right a regular Ttrim isnt all that good. It flows 1450 cfm, its in the middle of a D1 and a F1, good for 1000 hp take away your drivetrian losses, I think mid 800s are possible with this blower.
04-15-2006, 01:33 PM
#23
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Originally Posted by Nickn20
Wrong T-trim my friend, this is as JT-trim actually. you are right a regular Ttrim isnt all that good. It flows 1450 cfm, its in the middle of a D1 and a F1, good for 1000 hp take away your drivetrian losses, I think mid 800s are possible with this blower.
So whats your pulley size setup? A T Tim flows 1200 CFM based on Capa's chart. The J Trim flows 1600 CFM which is good for 750-800rwhp if not slightly more. So you are running a J Trim?
04-15-2006, 02:51 PM
#24
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Why are so few people using the YSi ?
When I get it running, I'll be spinning to 63,500k at 6500rpm ( 8.5" crank, 3.0" SC )
Hopefully it'll put a smile on my face
When I get it running, I'll be spinning to 63,500k at 6500rpm ( 8.5" crank, 3.0" SC )
Hopefully it'll put a smile on my face
04-15-2006, 03:02 PM
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Originally Posted by stevieturbo
Why are so few people using the YSi ?
When I get it running, I'll be spinning to 63,500k at 6500rpm ( 8.5" crank, 3.0" SC )
Hopefully it'll put a smile on my face
When I get it running, I'll be spinning to 63,500k at 6500rpm ( 8.5" crank, 3.0" SC )
Hopefully it'll put a smile on my face
YSi is a great unit. My friend maxed out his YSi at 850-890rwhp on a 550cid stroked Viper. He only saw 9psi with a filter and 11psi without a filter from the YSi.
